In keeping with our current theme of cool user-space file systems, this article examines the first user-space file system I ever used: SSHFS. SSHFS has a client that can mount and interact with a remote file system as though the file system were local. It uses sftp so it’s as secure as sftp is (I’m not a security expert so I can’t comment on the security of ssh).

Most often, when someone talks about a filesystem or file system, they're referring to disk filesystems such as NTFS, FAT, ext2, ext3, ext4, ISO 9660 and many others but can also refer to network file systems such as CIFS (Common Internet File System aka Samba) and NFS. A filesystem is a specially-designed database of files, their disk location, definition and attributes.

The patches adopted in Linux 2.6.30 introduce many significant changes affecting data security and Ext3 and Ext4 performance. Support for the EXOFS and NILFS2 file systems is new, as is the cache for the AFS and NFS network file systems. There are also a few fixes for the almost forgotten ReiserFS file system.

When it comes to file systems, Linux® is the Swiss Army knife of operating systems. Linux supports a large number of file systems, from journaling to clustering to cryptographic. Linux is a wonderful platform for using standard and more exotic file systems and also for developing file systems.

In Linux, there are two types of file links: hardlinks and softlinks. This article shows the difference between hard and soft links, how they work, and explains when you should pick a softlink over a hardlink.

Here is a Perl script that scans a given directory for symbolic links. It also reports whether those links are broken or not.

Linux continues to innovate in the area of file systems. It supports the largest variety of file systems of any operating system. It also provides cutting-edge file system technology. Two new file systems that are making their way into Linux include the NiLFS(2) log-structured file system and the exofs object-based storage system.

LINUX FILE SYSTEMS are an essential operating system resource. Modern file systems and disk drive technology are robust and reliable — so, most administrators put little effort into planning or worrying about them once the operating system is configured. This makes me both smile and cringe.

In recent history, journaling file systems were viewed as an oddity and thought of primarily in terms of research. But today, a journaling file system (ext3) is the default in Linux®. Discover the ideas behind journaling file systems, and learn how they provide better integrity in the face of a power failure or system crash. Learn about the various journaling file systems in use today, and peek into the next generation of journaling file systems.